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CCNA 200-301 > Network Access > Flashcards

Network Access Flashcards

1
Q

What is the primary effect of the spanning-tree portfast command?

A

It minimizes spanning-tree convergence time.

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2
Q

What occurs when PortFast is enabled on an interface that is connected to another switch?

A

Spanning-tree fails to detect a switching loop increasing the likelihood of broadcast storms.

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3
Q

Which QoS Profile is selected in the GUI when configuring a voice over WLAN deployment?

A

Platinum

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4
Q

Which unified access point mode continues to serve wireless clients after losing connectivity to the Cisco Wireless LAN Controller?

A

Flexconnect

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5
Q

Which mode must be used to configure EtherChannel between two switches without using a negotiation protocol?

A

On

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6
Q

Two switches are connected and using Cisco Dynamic Trunking Protocol. SW1 is set to Dynamic Auto and SW2 is set to Dynamic Desirable. What is the result of this configuration?

A

The link becomes a trunk port.

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7
Q

A Cisco IP phone receives untagged data traffic from an attached PC. Which action is taken by the phone?

A

It allows the traffic to pass through unchanged.

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8
Q

Which design element is a best practice when deploying an 802.11b wireless infrastructure?

A

allocating nonoverlapping channels to access points that are in close physical proximity to one another.

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9
Q

Which command is used to enable LLDP globally on a Cisco IOS ISR?

A

lldp run

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10
Q

In a CDP environment, what happens when the CDP interface on an adjacent device is configured without an IP address?

A

CDP operates normally, but it cannot provide IP address information for that neighbor.

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11
Q

When configuring an EtherChannel bundle, which mode enables LACP only if a LACP device is detected?

A

Passive.

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12
Q

Which two commands can you use to configure an actively negotiate EtherChannel?

A

channel-group 10 mode desirable
channel-group 10 mode active

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13
Q

How does STP prevent forwarding loops at OSI Layer 2?

A

Port Blocking

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14
Q

Which two statements about VTP are true?

A

All switches must use the same VTP version.
All switches must be configured with the same VTP domain name.

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15
Q

Which type does a port become when it receives the best BPDU on a bridge?

A

The root port.

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16
Q

Which value can you modify to configure a specific interface as the preferred forwarding interface?

A

The Port Priority

17
Q

What are two reasons a network administrator would use CDP?

A

to verify Layer 2 connectivity between two devices when Layer 3 fails.
to obtain the IP address of a connected device in order to telnet to the device.

18
Q

What are two benefits of using VTP in a switching environment?

A

It maintains VLAN consistency across a switched network.
It allows VLAN information to be automatically propagated throughout the switching environment.

19
Q

Which three statements are typical characteristics of VLAN arrangements?

A

Connectivity between VLANs requires a Layer 3 device.
Each VLAN uses a separate address space.
A switch maintains a separate bridging table for each VLAN.

20
Q

What criteria is used first during the root port selection process?

A

lowest path cost to the root bridge.

21
Q

Which statement about VLAN configuration is true?

A

The switch must be in VTP server or transparent mode before you can configure a VLAN.

22
Q

The SW1 interface g0/1 is in the down/down state. What are two reasons for the interface condition?

A

The interface is error-disabled.
There is a speed mismatch.

23
Q

Which two conditions must be met before SSH operates normally on a Cisco IOS switch?

A

The switch must be running a k9 (crypto) IOS image.
The ip domain-name command must be configured on the switch.

24
Q

An engineer requires a switch interface to actively attempt to establish a trunk link with a neighbor switch. What command must be configured?

A

switchport mode dynamic desirable

25
Q

Which technology prevents client devices from arbitrarily connecting to the network without state remediation?

A

802.1x

26
Q

An engineer must configure traffic for a VLAN that is untagged by the switch as it crosses a trunk link. Which command should be used?

A

switchport trunk native vlan 10

27
Q

What is the benefit of configuring PortFast on an interface?

A

After the cable is connected, the interface is available faster to send and receive user data.

28
Q

What is a requirement when configuring or removing LAG on a WLC?

A

The management interface must be reassigned if LAG is disabled.

29
Q

Which type of port is used to connect the wired network when an autonomous AP maps two VLANs to its WLANs?

A

Trunk.

CCNA 200-301 (2 decks)

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